A robust variable structure control plus dynamic inversion method was presented for nonlinear reentry attitude dynamics of hypersonic vehicles under model uncertainties and external disturbances. The dynamics is separated into fast and slow loops as angular velocity and attitude angular in terms of singular perturbation theory. Outloop gets the control laws based on adaptive variable structure control theory of reduced model without inversion computation, the disturbances observer is to compensate the generalized disturbances, to improve robustness and guarantee stability of closedloop systems. Inloop system is affine in control, the decoupling controller based on nonlinear dynamic inversion and state feedback is designed, the desired dynamics is proportional plus integral dynamics form. Lastly, Simulation result demonstrates the effectiveness of the proposed method.
张军,赵德安,王玫.高超飞行器的再入非线性鲁棒控制[J].动力学与控制学报,2011,9(1):91~96; Zhang Jun, Zhao De-an, Wang Mei. Re-entry nonlinear robust control law for hypersonic vehicles[J]. Journal of Dynamics and Control,2011,9(1):91-96.